/*

 * env.c                -- Tampering with mcabber's environment

 *

 * Copyrigth (C) 2009      Myhailo Danylenko <isbear@ukrpost.net>

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License as published by

 * the Free Software Foundation; either version 2 of the License, or (at

 * your option) any later version.

 *

 * This program is distributed in the hope that it will be useful, but

 * WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

 * General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with this program; if not, write to the Free Software

 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307

 * USA

 */

#include <glib.h>

#include <gmodule.h>

#include <string.h>

#include <stdlib.h>

#include "utils.h"

#include "compl.h"

#include "logprint.h"

extern char **environ;

// /env [option] [value]

static void do_env (char *arg)

{

	char **args = split_arg (arg, 2, 1);

	char  *var  = args[0];

	char  *val;

	if (var)

		val = args[1];

	if (!var) {

		// print full variables list

		GSList  *vars   = NULL;

		int      max    = 0;

		{

			char   **envvar;

			for (envvar = environ; *envvar; ++envvar) {

				char *end = strchr (*envvar, '=');

				if (end) {

					int   len  = end - *envvar;

					char *name = g_strndup (*envvar, len);

					if (len > max)

						max = len;

					vars = g_slist_prepend (vars, name);

				}

			}

		}

		if (max) {

			gchar  *format = g_strdup_printf ("%%-%ds = %%s", max);

			GSList *eel;

			vars = g_slist_sort (vars, (GCompareFunc) strcmp);

			for (eel = vars; eel; eel = eel->next) {

				char *name  = (char *) eel->data;

				char *value = getenv (name);

				scr_LogPrint (LPRINT_NORMAL, format, name, value);

				g_free (name);

			}

			g_free (format);

		}

		g_slist_free (vars);

	} else if (!val) {

		// print variable alone

		char *value = getenv (var);

		if (value)

			scr_LogPrint (LPRINT_NORMAL, "%s = %s", var, value);

	} else

		// set variable

		setenv (var, val, 1);

	free_arg_lst (args);

}

const gchar *g_module_check_init(GModule *module)

{

	// command

	cmd_add ("env", "", 0, 0, do_env, NULL);

	return NULL;

}

void g_module_unload(GModule *module)

{

	// command

	cmd_del ("env");

}